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User equipment and cell search method for the same

a cell search and user equipment technology, applied in the field of wireless communication devices, can solve the problems that user equipment supporting two or more frequency bands may require higher current consumption for performing cell search, and achieve the effect of reducing current consumption

Active Publication Date: 2014-01-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]The present invention provides a method that enables a user equipment supporting two or more frequency bands to reduce current consumption when performing a cell search.
[0021]In a feature of the present invention, it is possible for a user equipment supporting two or more frequency bands to reduce current consumption due to cell search.

Problems solved by technology

However, compared with a user equipment supporting one frequency band, a user equipment supporting two or more frequency bands may require higher current consumption for performing a cell search.

Method used

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  • User equipment and cell search method for the same
  • User equipment and cell search method for the same
  • User equipment and cell search method for the same

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Embodiment Construction

[0027]Exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings. The same reference symbols are used throughout the drawings to refer to the same or like parts. Detailed descriptions of well-known functions and structures incorporated herein may be omitted to avoid obscuring the subject matter of the present invention.

[0028]Table 2 describes current consumption of a user equipment according to the number of supported frequency bands.

[0029]

TABLE 2Average maximumNumber ofAverage currentcurrent consumptionTime infrequencyconsumptionin active stateactive statebands(mA)(mA)(second)13.2-3.6about 70 0.0629.0-9.8about 1200.09

[0030]For purposes of describing the invention, the user equipment supporting one frequency band uses the CDMA-850 band, and a user equipment supporting two frequency bands uses the CDMA-850 and WCDMA-2100 bands. As is known in the art, CDMA and WCDMA are communication systems used in the United States, for exampl...

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Abstract

A user equipment and cell search method for the same are disclosed. The user equipment supports two or more frequency bands. The cell search method for the user equipment includes: receiving intersection data through a first frequency band; and skipping, when the received intersection data is set to a search skip value, cell searching in a second frequency band.

Description

CLAIM OF PRIORITY[0001]This application claims, pursuant to 35 USC 119(a), priority to, and the benefit of the earlier filing date of, that patent application entitled, “User Equipment and Cell Search Method for the Same,” filed in the Korean Patent Office on Jun. 29, 2009 and afforded serial number 10-2009-0058176, the contents of which are incorporated by reference, herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to the field of wireless communication devices and, more particularly, to user equipment supporting at least two frequency bands for communication and a cell search method for the same.[0004]2. Description of the Related Art[0005]Frequency bands used for wireless communication may vary depending upon uses, standards, and systems. For example, Table 1 illustrates some frequency bands used by Global System for Mobile Communications (GSM).[0006]TABLE 1UplinkDownlinkChannelSystemBand(MHz)(MHz)numberGSM-450450450.4...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
CPCH04W88/06H04W48/16Y02B60/50Y02D30/70H04W36/04
Inventor LEE, YONG, HWAN
Owner SAMSUNG ELECTRONICS CO LTD